Substituted 4-benzylaminoquinolines and their hetero analogs, process for their preparation, pharmaceuticals containing these compounds and use thereof
申请人:Aventis Pharma Deutschland GmbH
公开号:US06339077B1
公开(公告)日:2002-01-15
The invention relates to substituted 4-benzylaminoquinolines and their hetero analogs, and to the pharmaceutically acceptable salts and physiologically functional derivatives thereof. Compounds of formula I
in which the radicals are defined in the specification, and their physiologically tolerated salts, physiologically functional derivatives and processes for their preparation are described. The compounds are suitable, for example, as medicines for the prophylaxis or treatment of gallstones.
There are described compounds of the formula ##STR1## where X is hydrogen, halogen, loweralkyl, loweralkoxy or trifluoromethyl; R is ##STR2## R.sub.4 being loweralkyl; R.sub.1 is hydrogen, loweralkyl or arylloweralkyl; R.sub.2 is hydrogen, loweralkyl or arylloweralkyl; and R.sub.3 is loweralkyl, with the proviso that when R is acetyl, R.sub.3 is methyl and X is hydrogen, R.sub.1 and R.sub.2 are not both hydrogen, or pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory and for treating Alzheimer's disease.